Home / 812,672.70-1,216,935.45-646,784.70

Finding the Fourth Proportional to 812,672.70, 1,216,935.45 and 646,784.70

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Solution

The fourth proportional to 812,672.70, 1,216,935.45 and 646,784.70 is: 968,526.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,672.70 : 1,216,935.45 = 646,784.70 : x
  2. Step 2: Convert to fraction form
    812,672.70/1,216,935.45 = 646,784.70/x
  3. Step 3: Cross multiply
    812,672.70x = 1,216,935.45 × 646,784.70
  4. Step 4: Simplify right side
    812,672.70x = 787,095,229,947.62
  5. Step 5: Solve for x
    x = 787,095,229,947.62/812,672.70
  6. Step 6: Final answer
    x = 968,526.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.